Tubbing.



Patented Fb. 28, 1911.

him/1Z7 TUBBING.

Rs co.. WASHINGTON, o. c.

-W. HUTTANUS.

APPLIOATION FILED JULY 7,1909.

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1n: NaRms PETE WILHELM HUTTANUS, or some, KREIS MOERS, GERMANY.

'lUBBING.

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Application filed July 7, 1909. Serial No. 506,428.

To all whom it may concern:

Be it known that I, lVILrIELM HUTTANUS, of Borth, a subject of the Kingof Prussia, whose post-otlic'e address is Borth, Kreis Moors, Prussia,German Empire, have invented new and useful Improvements in Tubbing, ofwhich the following is a specification.

The present invention relates generally to tubbing and particularly tomeans for forming a watertight joint between wedge-cribs and guiderings.

In previously known methods of constructing the tubbing of shafts thejoint between the wedge-crib of the upper and the guide ring of thelower set of tubbing was calked with wooden cuttings. Owing to changesin temperature, such as occur for example between summer and winter,these cuttings are not uniformly firm. They can be placed in positiononly with great difliculty at considerable depths 011 account of theincreasing pressure and are always a greater or less danger for theshaft. Thus it has not seldom happened that the cuttings were the causeof serious accidents.

Now a primary object of the invention is to remedy the above defects;according to the invention the cuttings between the wedge-crib and guidering are omitted and a special ring is provided for making the tubbingwatertight.

In order that the invention may be clearly understood reference will bemade to the accompanying drawing in which one embodiment is representedby way of example in vertical sectional elevation.

Referring to the drawing, when a set of tubbing has been finished as faras the guide ring a ring 6 is suspended under the upper wedge-crib a bymeans of screw-bolts which are only loosely screwed up. Said ring has a.groove f in which is placed packing composed of lead plates Z, thethickness of which depends on the size of the guide ring. Then the ring0 is built in with its outward and downward extending rim 9 in the saidgroove f of the ring 6. By tightening the bolts 6 the ring 6 is raised,where- Speeification of Letters Patent.

Patented Feb. 28, 1911.

as the ring 0 is lowered by tightening the bolts 6 in the ring c.Consequently the rim 9 will be pressed into the lead-lined groove f ofthe ring 6 and water is prevented from penetrating between the rim 9 andthe groove f into the shaft.

Holes, which can be closed by screwed plugs (Z, are provided in the ring6 for inserting concrete or the like behind the tubbing.

The strengthening ribs 71. projecting toward the face of the shaft aresolely for enabling the rings to be embedded better in the concrete.

In order to prevent leaks forming between the rim 9 and the groove f inthe event of the entire tubbing structure sinking, there is built intothe ring 7) on the lengthened top flange of the guide ring 0 a ring 2',the top flange of which is bolted to the ring 7) and the wedge-crib a,as clearly shown. The bottom flange of the ring 2' is likewise bolted tothe inwardly extending flange 7c of the guide ring. In this manner it isobtained that the weight of the upper watertight portion of the liningof the shaft is not taken up solely by the ring 6, but is distributedalso onto the ring 0, and consequently onto the rings under the ring,Z). The space between the rings 2' and b may likewise be filled up withconcrete through holes which are normally closed by screwed plugs (Z.

The remaining tubbing may be constructed in any suitable manner, it bengimmaterial to this invention whether it is smooth, ribbed or of otherform.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

l. The combination with tubbing and a wedge-crib attached thereto; of aring having a groove containing packing bolted to said wedge-crib, aguide ring having a flange provided with a downward extending rimresting on said packing, a ring bolted to said flange and to saidwedge-crib, and tubbing bolted'to said guide ring.

2. The combination, with tubbing and a wedge-crib attached thereto, of aring havfirst-named ring and ing 1 lead-lined inwardly arranged grooveIn iestiinonywhereof I have hereunto setand anoutwa dly projecting rib,a guide my hand in presence of two subscribing WitringQhaving a flangeprovidedwith adowrr' nesses.

iward extending rim resting onsaid packing, WILHELM HUTTANUS. [1 5.] aring boltedto said guide'ring and Wedge- Witnesses: I

crib, and subbing boltedto said guide ring, OTTO'KiSNIG,

substantially as described." 7

e WILLY KLEIN,

' Copies of chispatent may be 'b'bta ilid fol five cents each, byaddressing the Commissioner of Patents,

' 7 Washington, D. C.

